Changing the MAC address of the Nox emulator with the command line

When we open the Nox emulator, the MAC address is the same in all the emulators opened, and it takes the MAC address of your system. On the main website of Nox, there is a command to change the MAC address, but we could not write a proper code for this. Can anyone help?
I will put the link of the command section here. It is the 15th title

https://support.bignox.com/en/function/command